Nitish Raj

10+ years of experience connecting technology with strategy — building scalable data systems, leading teams, and turning data into decisions.

What I Work With

Scalable ETL pipelines, data models, and lakehouse architectures

CI/CD for data products, test-driven development, and automation

AWS and GCP infrastructure design, serverless, and cost optimization

Business intelligence, statistical modeling, and ML-driven insights

Analysis, automation, and production data work

Python SQL R PySpark Spark

Cloud platforms, serverless apps, and local cloud development

AWS GCP Cloudflare Vercel LocalStack

Delivery, orchestration, visualization, and infrastructure workflows

Docker Git Tableau dbt Kubernetes Grafana Terraform Apache Airflow OpenMetadata JupyterHub

Reliable pipelines, tested changes, and decision-ready data products

ETL CI/CD Data Modeling ML Data Vault 2.0 Parquet Statistical Analysis Time Series Analysis A/B Testing

06/2024 - Present Data Engineer / AWS Cloud Admin Creos Luxembourg

AWS Redshift dbt Core Airflow Terraform Kubernetes Data Vault 2.0

Rebuilding the Redshift data warehouse with Data Vault 2.0, dbt Core, Airflow, and DataOps practices.
Operating AWS-native pipelines, lakehouse automation, EKS workloads, and enterprise data catalog services.

08/2018 - 04/2024 Senior Business Intelligence Engineer Amazon

Python AWS Spark Redshift ML Data Modeling

Built KPI pipelines and data models across Spark, Redshift, AWS, and Python-backed analytics systems.
Improved reporting, operational throughput, ML classification accuracy, and global decision workflows.

07/2015 - 07/2018 Decision Scientist (Consultant) Mu Sigma Business Solutions Pvt Ltd

R Python Tableau Analytics A/B Testing

Delivered customer analytics, attribution, A/B testing, and automated Tableau reporting.
Used ML, time-series analysis, and SQL/Qlik workflows for marketing and transaction insights.